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dc.contributor.authorGrydeland, Tom
dc.contributor.authorSullivan, J.M.
dc.contributor.authorBlixt, Erik Mårten
dc.contributor.authorIvchenko, N.
dc.contributor.authorLockwood, M.
dc.contributor.authorLanchester, B.S.
dc.date.accessioned2007-01-24T09:38:00Z
dc.date.available2007-01-24T09:38:00Z
dc.date.issued2006-09-20
dc.description.abstractThe link between natural ion-line enhancements in radar spectra and auroral activity has been the subject of recent studies but conclusions have been limited by the spatial and temporal resolution previously available. The next challenge is to use shorter sub-second integration times in combination with interferometric programmes to resolve spatial structure within the main radar beam, and so relate enhanced filaments to individual auroral rays. This paper presents initial studies of a technique, using optical and spectral satellite signatures, to calibrate the received phase of a signal with the position of the scattering source along the interferometric baseline of the EISCAT Svalbard Radar. It is shown that a consistent relationship can be found only if the satellite passage through the phase fringes is adjusted from the passage predicted by optical tracking. This required adjustment is interpreted as being due to the vector between the theoretical focusing points of the two antennae, i.e. the true radar baseline, differing from the baseline obtained by survey between the antenna foot points. A method to obtain a measurement of the true interferometric baseline using multiple satellite passes is outlined.en
dc.format.extent800039 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.issn1432-0576 (elektronisk)
dc.identifier.urihttps://hdl.handle.net/10037/549
dc.identifier.urnURN:NBN:no-uit_munin_376
dc.language.isoengen
dc.publisherEuropean Geosciences Unionen
dc.relation.ispartofseriesAnnales Geophysicae 24(2006), pp 2419-2427en
dc.rights.accessRightsopenAccess
dc.subjectradio scienceen
dc.subjectinterferometryen
dc.subjectinstruments and techniquesen
dc.subjectionosphereen
dc.subjectauroral ionosphereen
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Elektromagnetisme, akustikk, optikk: 434en
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437en
dc.titlePhase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures.en
dc.typeJournal articleen
dc.typePeer reviewed
dc.typeTidsskriftartikkelno


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